Improvement in rotary engines



'JOSEP'H'KBENNETT,

' Improvement in Rotary Engines;

N0. 123,145. I I Patente-dlan .30,1872.

flyagl 0 xi" m\\\\' v @W Witnesses; v

PATENT OFFICE JOSEPH B. BENNETT, OF BROOKLYN, NEW YORK.

IMPROVEMENT IN ROTARY ENGINES.

Specification forming part of Letters Patent No. 123,145, dated January 30, 1872.

Specification describing certain Improvements in Rotary Engines, invented by JOSEPH B. BENNETT, of the city of Brooklyn, county of Kings and State of New York.

The nature of my invention consists, chiefly, in the improved method of keeping the pistons in position in rotary engines, the inner cylinders of which are eccentric to the outer ones.

Figure 1 represents a face view of the engine with the front side removed. Fig. 5 is a central cross-section of the same.

A, the outer cylinder; B B, the inner cylinder; 0 c 0, pistons; D, shaft; G, hub, part of which extends into the engine; E E, rods pa ssing through holes connecting opposite pistonslots. These rods keep the pistons very nearly in position, but will not make them tight at all points. The distance from 1 to 1 is less than that from 2 to 2 in proportion as cylinder B B is eccentric to cylinder A. To compensate for this difference, and for the wear on the pistons, a spring, F, of some kind between the ends of the said rods and the inner edges of the pistons is requisite. I prefer the style shown in the drawing to any other, but either of man y kinds might be substituted. This manner ofoperating the pistons or of keeping them in position for operating reduces the friction in this class of engines to the minimum.

I do not confine myself to four pistons, but can use two, four, or six.

VVha-t I claim as my invention, and desire to secure by Letters Patent, is

The combination of the rods E E and pistons 0 0 in an engine, the inner and outer cylinders of which are eccentric with the spring F, all constructed substantially as and for the purposes set forth.

JOSEPH B. BENNETT.

Witnesses:

RoBT. SPENCER, JOSEPH B. MERKERT. 

